CVE-2025-56234
Sept. 29, 2025, 7:34 p.m.
None
No Score
Description
AT_NA2000 from Nanda Automation Technology vendor has a denial-of-service vulnerability. For the processing of TCP RST packets, PLC AT_NA2000 has a wide acceptable range of sequence numbers. It does not require the sequence number to exactly match the next expected sequence value, just to be within the current receive window, which violates RFC5961. This flaw allows attackers to send multiple random TCP RST packets to hit the acceptable range of sequence numbers, thereby interrupting normal connections and causing a denial-of-service attack.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Nanda Automation Technology |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | nanda_automation_technology | at_na2000 | / | / | / | / | / | / | / | / |
Tags
Timeline
Published: Sept. 29, 2025, 5:15 p.m.
Last Modified: Sept. 29, 2025, 7:34 p.m.
Last Modified: Sept. 29, 2025, 7:34 p.m.
Status : Awaiting Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
cve@mitre.org
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.